CVE-2026-6968 | AWS tough/tuftool prior 0.22.0 copy_target/link_target path traversal (EUVD-2026-25629)

VDB-359567 · CVE-2026-6968 · EUVD-2026-25629 AWS TOUGH/TUFTOOL PRIOR 0.22.0 COPY_TARGET/LINK_TARGET PATH TRAVERSAL HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.9 $0-$5k 3.10+ Summaryinfo A vulnerability was found in AWS tough and tuftool. It has been classified as critical. Affected is the function copy_target/link_target. The manipulation leads to path traversal. This vulnerability is uniquely identified as CVE-2026-6968. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is recommended. Detailsinfo A vulnerability was found in AWS tough and tuftool. It has been rated as critical. This issue affects the function copy_target/link_target. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is integrity, and availability. The summary by CVE is: Incomplete path traversal fixes in awslabs/tough before tough-v0.22.0 allow remote authenticated users with delegated signing authority to write files outside intended output directories via absolute target names in copy_target/link_target, symlinked parent directories in save_target, or symlinked metadata filenames in SignedRole::write, because write paths trust the joined destination path without post-resolution containment verification. We recommend you upgrade to tough-v0.22.0 / tuftool-v0.15.0. It is possible to read the advisory at aws.amazon.com. The identification of this vulnerability is CVE-2026-6968 since 04/24/2026. The exploitation is known to be difficult. The attack may be initiated remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK. Upgrading to version 0.22.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-25629). Productinfo Vendor AWS Name tough tuftool CPE 2.3info 🔒 🔒 CPE 2.2info 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 5.1 VulDB Meta Temp Score: 4.9 VulDB Base Score: 4.2 VulDB Temp Score: 4.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 5.9 CNA Vector (AMZN): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Path traversal CWE: CWE-22 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: tough/tuftool 0.22.0 Timelineinfo 04/24/2026 Advisory disclosed 04/24/2026 +0 days CVE reserved 04/24/2026 +0 days VulDB entry created 04/25/2026 +0 days VulDB entry last update Sourcesinfo Advisory: aws.amazon.com Status: Confirmed CVE: CVE-2026-6968 (🔒) GCVE (CVE): GCVE-0-2026-6968 GCVE (VulDB): GCVE-100-359567 EUVD: 🔒 Entryinfo Created: 04/24/2026 23:08 Updated: 04/25/2026 00:53 Changes: 04/24/2026 23:08 (76), 04/25/2026 00:53 (1) Complete: 🔍 Cache ID: 99:C71:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸